Acanthodii

Acanthodii or acanthodians (whiles cried spiny shairks) is a paraphyletic cless o teleostome fish, sharin features wi baith banie fish an cartilaginous fish.

Acanthodii Temporal range: Early Silurian–Permian PreЄ Є O S D C P T J K Pg N Survival in modren Chondrichthyes
Acanthodes sp.
Scientific classification
Kinrick:	Animalia
Phylum:	Chordata
Infraphylum:	Gnathostomata
Cless:	Acanthodii Owen, 1846
Orders
Climatiiformes Ischnacanthiformes Acanthodiformes